Question
 The famous sports personality Roger Federer announces
retirement from ______ sport recently?Solution
Roger Federer, a 41 year old professional player of tennis from Switzerland has played 1500 matches, 20 Grand Slam titles and 24 years has now ready to take retirement.
What will come in the place of question mark (?) in the given expression?
28 X 3.5 + 12 X 6 = ? X 4 + 90
40.5 ÷ [4/5 of (32 + 18) - 29/2] = ? ÷ 102
322 – 182 + 11 × 24 = ?

40% of 220 × 15 ÷ 20 = ?
What value should come in place of the question mark (?) in the following question?
468 × 4 − 350 ÷ 7 + 130
[5 X {(52 X 5) - 10} + 50 of 20] = ?
2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)
2/5 of 3/4 of 7/9 of 7200 = ?
Determine the simplified value of the given mathematical expression.
